import java.util.Scanner;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.LinkedBlockingQueue;

public class Test {

    {
        synchronized (Test.class) {

        }
    }
    public static void main(String[] args) throws InterruptedException {


    }

}
